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Old 05-01-2010, 09:38 AM   #1
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SCL HELP!! with Ditra


First off, thanks for reading my question

I have a bathroom I am preping for tile, and yes I have a couple of smiles in the floor, so I have purchased some Stone Mason E-Z flow SLC. Now I'm sure I have everything figured out on how to do it all, but after the floor is level I will be also installing Ditra, so here is my question

Schluter instruction says to lay min. 3/8 underlayment and with 1/8" spacing between sheets and walls (which is complete) so my thinking is once I pour the SCL all the spacing will be filled in! is this an issue? Should I fill the gaps with a flexable chaulk or something?

I hope you DIYers and Pro's have had this issue, and know the correct way to deal with it, as I can't find anything on the Schluter, nor the Stone Masson site regaurding this issue

Thank you
Josh

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Old 05-01-2010, 10:06 AM   #2
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SCL HELP!! with Ditra


Hi Josh,

It shouldn't be an issue in a small space, but it's best to leave an expansion joint. Use self-stick foam bonded to the wall.

Jaz

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Old 05-01-2010, 10:45 AM   #3
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SCL HELP!! with Ditra


Or run a bead of minimal expanding spray foam.
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Old 05-01-2010, 11:17 AM   #4
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SCL HELP!! with Ditra


I do need to fill a gap under my tub (to stop the SCL from going under it) So I have some small gap fill foam (for chaulking large gaps) I was going to use for that, do you think this will work around the wall gaps?

Thanks for the replies

Josh
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Old 05-01-2010, 12:38 PM   #5
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SCL HELP!! with Ditra


No.

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Old 05-01-2010, 04:53 PM   #6
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SCL HELP!! with Ditra


Quote:
Originally Posted by JazMan View Post
Hi Josh,

It shouldn't be an issue in a small space, but it's best to leave an expansion joint. Use self-stick foam bonded to the wall.

Jaz

By that are you meaning plain old weather stripping (foam with the addhesive strip on the back)

Thanks for the help Jaz
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Old 05-02-2010, 03:20 PM   #7
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SCL HELP!! with Ditra


Quote:
By that are you meaning plain old weather stripping (foam with the addhesive strip on the back)
Yes. Also run a strip of the adhesive across the front of the tub. Be sure it is firmly touching the floor in all areas but especially in front of the tub. The SLC won't creep under the foam and you'll be fine.

After the SLC sets up use a utility knife and run it along the top of the SLC to cut-away the foam everywhere. Maintain a 1/4" gap between the tile and the walls and reduce the gap to 1/8" along the front of the tub. Later caulk the tub gap.

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